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CA2452486A1 - Electronic control systems and methods - Google Patents

Electronic control systems and methods Download PDF

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Publication number
CA2452486A1
CA2452486A1 CA002452486A CA2452486A CA2452486A1 CA 2452486 A1 CA2452486 A1 CA 2452486A1 CA 002452486 A CA002452486 A CA 002452486A CA 2452486 A CA2452486 A CA 2452486A CA 2452486 A1 CA2452486 A1 CA 2452486A1
Authority
CA
Canada
Prior art keywords
power
controllably conductive
conductive device
line voltage
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002452486A
Other languages
French (fr)
Other versions
CA2452486C (en
Inventor
Richard L. Black
Benjamin Aaron Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lutron Electronics Co Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26685198&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2452486(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to CA2627848A priority Critical patent/CA2627848C/en
Priority to CA2628211A priority patent/CA2628211C/en
Priority to CA2628022A priority patent/CA2628022C/en
Priority to CA2627819A priority patent/CA2627819C/en
Priority to CA2628002A priority patent/CA2628002C/en
Application filed by Individual filed Critical Individual
Priority to CA2627768A priority patent/CA2627768C/en
Publication of CA2452486A1 publication Critical patent/CA2452486A1/en
Publication of CA2452486C publication Critical patent/CA2452486C/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/538—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • H03K17/6874—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • H05B39/048—Controlling the light-intensity of the source continuously with reverse phase control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0012—Control circuits using digital or numerical techniques
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K2017/0806—Modifications for protecting switching circuit against overcurrent or overvoltage against excessive temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
  • Manipulation Of Pulses (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

An apparatus in an electronic control system allows two or three wire operations. A power supply (150) can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors (110) are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry (120) is employed to keep the protection circuitry in effect even after a fault condition has cleared. Lockout circuitry (130) is used to prevent one protection circuit from tripping after the other circuit has already tripped from a fault condition. The protection circuitry output is desirably configured such that it can bypass and override the normal turn on and turn off impedance and act virtually directly on the gates of the MOSFETs.
Preferably, the system has a high efficiency switching type power supply in parallel with a low frequency controllably conductive device.

Claims (54)

1. An electronic control system operable in a two wire mode and a three wire mode, comprising:
a detector having a hot input terminal and a neutral input terminal and generating at least one output signal, the output signal used to automatically operate the electronic control system in one of the two wire mode and the three wire mode.
2. The system of claim 1, wherein the at least one output signal comprises a hot zero cross detection signal and a neutral zero cross detection signal, and wherein the detector comprises:
a hot zero cross detector coupled to the hot input terminal to generate the hot zero cross detection signal; and a neutral zero cross detector coupled to the neutral input terminal to generate the neutral zero cross detection signal.
3. The system of claim 1, further comprising a microprocessor coupled to the detector to monitor the output signal and select one of the two wire mode and the three wire mode responsive to the output signal.
4. An electronic control system connectable to a source of electric power, operable in a two wire mode and a three wire mode, comprising a hot terminal, a dimmed hot terminal, a neutral terminal and a power supply, the power supply drawing a power supply current from the source of electric power, wherein said power supply current only flows between the hot terminal and the dimmed hot terminal when said electronic control system is operating in said two wire mode, and wherein a portion of said power supply current flows between the hot terminal and neutral terminal when said electronic control system is operating in said three wire mode.
5. The power supply of claim 4, wherein the power supply comprises a high frequency switching power supply.
6. An electronic control system connectable to a line voltage having line voltage zero crossings, comprising a controllably conductive device, said electronic control system operable to detect a line voltage zero crossing by causing said controllably conductive device to be conductive for a predetermined period of time prior to said electronic control system monitoring the line voltage for the line voltage zero crossing.
7. The system of claim 6, wherein said controllably conductive device is controlled to be conductive throughout the monitoring of the line voltage for the line voltage zero crossing.
8. The system of claim 6, wherein the electronic control system is operable in a two wire mode.
9. The system of claim 8, wherein the controllably conductive device is controlled to be non-conductive prior to said electronic control system monitoring the line voltage for the line voltage zero crossing.
10. The system of claim 6, wherein the predetermined period of time is at least about 200 µsec.
11. The system of claim 10, wherein the monitoring of the line voltage for the line voltage zero crossing begins at least about 10% of the time between two consecutive line voltage zero crossings before the line voltage zero crossing.
12. The system of claim 10, wherein the monitoring of the line voltage for the line voltage zero crossing begins at least about 1 millisecond before the line voltage zero crossing.
13. The system of claim 12, wherein the controllably conductive device is controlled to be conductive throughout the time when said electronic control system is monitoring the line voltage for the line voltage zero crossing.
14. The system of claim 6, wherein the electronic control system is operable in a three wire mode.
15. An electronic control system comprising at least one controllably conductive device driven through a high impedance path during fault-free operation of said electronic control system and through a low impedance path after a fault condition has been detected by said electronic control system.
16. The system of claim 15, further comprising an over voltage protector that senses an over voltage fault condition present on said at least one controllably conductive device and causes said at least one controllably conductive device to be conductive.
17. The system of claim 16, further comprising a latching circuit to maintain the conduction of said at least one controllably conductive device after the over voltage fault condition has been cleared.
18. The system of claim 16, further comprising an over current protector that senses an over current fault condition of said at least one controllably conductive device and causes said at least one controllably conductive device to be non-conductive.
19. The system of claim 18, further comprising a lockout circuit which prevents the over voltage protector from controlling the at least one controllably conductive device after an over current fault condition has been detected.
20. The system of claim 18, further comprising a lockout circuit which prevents the over current protector from controlling the at least one controllably conductive device after an over voltage fault condition has been detected.
21. The system of claim 15, further comprising an over current protector that senses an over current fault condition of said at least one controllably conductive device and causes said at least one controllably conductive device to be non-conductive.
22. The system of claim 21, further comprising a latching circuit to maintain the non-conduction of said at least one controllably conductive device after the over current fault condition has been cleared.
23. The system of claim 15, wherein the high impedance path comprises a first path for controlling the rate of transition from conduction to non-conduction of said at least one controllably conductive device and a second path for controlling the rate of transition from non-conduction to conduction of said at least one controllably conductive device.
24. The system of claim 23, wherein the impedances of said first and second paths are independent of each other.
25. The system of claim 15, wherein the low impedance path comprises a third path for controlling the rate of transition from conduction to non-conduction of said at least one controllably conductive device and a fourth path for controlling the rate of transition from non-conduction to conduction of said at least one controllably conductive device.
26. The system of claim 25, wherein the impedances of said third and fourth paths are independent of each other.
27. A device for controlling the amount of power delivered from a source of power to a load comprising:
a controllably conductive device connectable between said source and said load;
a control circuit for controlling said controllably conductive device, responsive to a user input signal representative of a predetermined amount of power to be delivered from said source to said load, said control circuit having a first mode of operation and a second mode of operation; and a detector circuit for detecting the presence of an additional input signal and causing said control circuit to switch from said first mode of operation to said second mode of operation when the presence of said additional input signal is detected.
28. The device of claim 27, wherein the detector circuit causes a signal derived from said additional input signal to be provided to said control circuit when the presence of said additional input signal is detected.
29. A device for controlling the amount of power delivered from a source of power to a load comprising:
a controllably conductive device connectable between said source and said load, said controllably conductive device having a conductive state and a non-conductive state;
a first control circuit for controlling said controllably conductive device in a normal mode of operation responsive to a user input signal representative of a predetermined amount of power to be delivered from said source to said load, said first control circuit causing said controllably conductive device to transition between said conductive state and said non-conductive state at a first transition rate;
a second control circuit for controlling said controllably conductive device in a fault mode of operation responsive to the detection of a fault condition, said second control circuit causing said controllably conductive device to transition between said conductive state and said non-conductive state at a second transition rate which is different from said first transition rate.
30. The device of claim 29, wherein the first transition rate is slower than the second transition rate.
31. The device of claim 29, wherein the first transition rate comprises a first turn-on rate and a first turn-off rate and the second transition rate comprises a second turn-on rate and a second turn-off rate.
32. The device of claim 31, wherein the first turn-on rate is different than the second turn-on rate.
33. The device of claim 31, wherein the first turn-off rate is different than the second turn-off rate.
34. An apparatus for controlling the amount of power delivered from a source of power to a load comprising:

a first main terminal and a second main terminal, said first main terminal connectable to said source of power and said second main terminal connectable to said load to allow current to flow from said source of power to said load;
a power supply that draws a power supply current from said source of power through said load;
a third terminal connectable to said source of power, wherein when said third terminal is energized by said source of power a portion of said power supply current flows through said third terminal instead of through said load.
35. The apparatus of claim 34, wherein said first main terminal is connectable to a hot terminal of said source of power.
36. The apparatus of claim 35, wherein said third terminal is connectable to a neutral connection of said source of power.
37. The apparatus of claim 34, further comprising a diode that steers said portion of said power supply current through said third terminal instead of through said load.
38. An apparatus for controlling the amount of power delivered from a source of AC power to a load, the AC power having a substantially sinusoidal line voltage at a predetermined line frequency with zero crossings, the apparatus comprising:
a controllably conductive device connectable between said source of AC power and said load; and a control circuit for controlling the conduction of said controllably conductive device, said control circuit responsive to an input signal representative of a predetermined amount of power to be delivered from said source of AC power to said load, said control circuit responsive to said zero crossings of said substantially sinusoidal line voltage so as to synchronize the conduction of said controllably conductive device with said substantially sinusoidal line voltage;
said control circuit enabling a first conduction time of said controllably conductive device that is a variable conduction time proportional to said predetermined amount of power to be delivered from said source of AC power to said load;
said control circuit enabling a second conduction time of said controllably conductive device that is a fixed conduction time in the same half cycle as said first conduction time, said second conduction time starting prior to the next zero crossing of said substantially sinusoidal line voltage and ending at a predetermined time with respect to said next zero crossing;
said control circuit causing said controllably conductive device to be non-conductive for a period of time between the end of said first conduction time and the beginning of said second conduction time.
39. The apparatus of claim 38, wherein the second conduction time is about 200 µsec.
40. The apparatus of claim 38, wherein the second conduction time ends at about the time of said next zero crossing.
41. A method of reducing flicker in a lamp driven by an electronic transformer in a system powered by an AC line voltage, comprising the steps of:
providing current to said electronic transformer through a series connectable dimming circuit, wherein said current flows for a user selectable first conduction time in an AC line voltage half cycle; and providing a non-overlapping second conduction time in the same half cycle of the AC
line voltage just prior to the next zero crossing of the AC line voltage.
42. The method of claim 41, wherein said second conduction time is a fixed amount of time.
43. The method of claim 41, wherein said fixed amount of time is about 200 microseconds.
44. The method of claim 41, wherein said second conduction time ends about microseconds before said next zero crossing of said AC line voltage.
45. A power controlling device for controlling the amount of power delivered from a source of power to a load comprising:
a first and a second main terminal, said first main terminal connectable to said source of power, said second main terminal connectable to said load to allow current to flow from said source of power to said load; and a power supply that draws a power supply current from said source of power and through said load, said power supply having an efficiency greater than about 50%.
46. The power controlling device of claim 45, wherein said power supply is a switching type power supply.
47. The power controlling device of claim 46, wherein said power supply is a buck converter type switching supply.
48. The power controlling device of claim 46, wherein said power supply is a flyback type switching supply.
49. The power controlling device of claim 45, further including a controllably conductive device connected to said first main terminal and said second main terminal, wherein said power supply is operable during both times of conduction and non-conduction of said controllably conductive device.
50. The power controlling device of claim 45, wherein said power supply is constrained to run only during selected times of the AC line voltage half cycle.
51. A method for supplying power to the control circuitry of a power control device including at least one controllably conductive device connectable to a load in a two wire mode, comprising the steps of:
charging a capacitor through said load to a predetermined high voltage when said controllably conductive device is in a non-conductive state; and drawing current from said capacitor using a converter having a predetermined efficiency to provide a power supply voltage for operation of said control circuitry.
52. The method of claim 51, wherein said converter is a switch mode type converter.
53. The method of claim 51, wherein said converter is a flyback type converter.
54. The method of claim 51, wherein said converter is at least about 50%
efficient.
CA002452486A 2001-07-06 2002-07-03 Electronic control systems and methods Expired - Lifetime CA2452486C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA2628211A CA2628211C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628022A CA2628022C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627819A CA2627819C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628002A CA2628002C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627848A CA2627848C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627768A CA2627768C (en) 2001-07-06 2002-07-03 Electronic control systems and methods

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US30350801P 2001-07-06 2001-07-06
US60/303,508 2001-07-06
US10/013,746 2001-12-10
US10/013,746 US6969959B2 (en) 2001-07-06 2001-12-10 Electronic control systems and methods
PCT/US2002/021059 WO2003005550A1 (en) 2001-07-06 2002-07-03 Electronic control systems and methods

Related Child Applications (6)

Application Number Title Priority Date Filing Date
CA2627848A Division CA2627848C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628211A Division CA2628211C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628022A Division CA2628022C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628002A Division CA2628002C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627819A Division CA2627819C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627768A Division CA2627768C (en) 2001-07-06 2002-07-03 Electronic control systems and methods

Publications (2)

Publication Number Publication Date
CA2452486A1 true CA2452486A1 (en) 2003-01-16
CA2452486C CA2452486C (en) 2009-11-10

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CA2628022A Expired - Lifetime CA2628022C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627768A Expired - Lifetime CA2627768C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627848A Expired - Lifetime CA2627848C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628002A Expired - Lifetime CA2628002C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627819A Expired - Lifetime CA2627819C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA002452486A Expired - Lifetime CA2452486C (en) 2001-07-06 2002-07-03 Electronic control systems and methods

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CA2628022A Expired - Lifetime CA2628022C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627768A Expired - Lifetime CA2627768C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627848A Expired - Lifetime CA2627848C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2628002A Expired - Lifetime CA2628002C (en) 2001-07-06 2002-07-03 Electronic control systems and methods
CA2627819A Expired - Lifetime CA2627819C (en) 2001-07-06 2002-07-03 Electronic control systems and methods

Country Status (13)

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US (7) US6969959B2 (en)
EP (5) EP1413041B1 (en)
JP (7) JP4303106B2 (en)
KR (1) KR100937306B1 (en)
CN (7) CN100488016C (en)
AT (3) ATE544226T1 (en)
AU (1) AU2002346046B2 (en)
CA (6) CA2628022C (en)
ES (1) ES2371160T3 (en)
HK (1) HK1120165A1 (en)
MX (1) MXPA04000105A (en)
SG (1) SG153652A1 (en)
WO (1) WO2003005550A1 (en)

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* Cited by examiner, † Cited by third party
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